Simon is going camping and has given his mother a long list of essential requirements. In order to acquaint himself with the pitfalls ahead, he decides to spend the night under canvas in the back garden - while Sally worries about him from the comfort of the house.
Sally is determined to get Simon a new bicycle for his birthday and so offers to do extra hours at work. Once she has acquired the bike she then has the problem of keeping it a secret until the happy day...
General Moresby has come to stay in the Harrison household and is receiving a lot of attention - as you would expect for a mynah bird. Inevitably, there is a mishap when the bird goes missing and Sally has to try and replace him.
When there is a major feud between the boys, Sally needs to call on Auntie and Mr. Campbell in an effort to restore peace and harmony to the household.
Simon's bad school report, and his excuse that his teacher picks on him, leads Sally to head to the school ready for battle. But when she meets the teacher, Mr Montgomery, she forgets all about Simon's report as matters take an unexpected turn.
When the boys start kidding Sally about her weight she takes it personally and ends up in a competition with Auntie to see who can lose the most weight in a fortnight.
In an effort to keep the boys away from the television, Sally introduces them to some hobbies, but they are far from happy with her choice.
Sally feels the boys need an "interesting" day out during the school holidays, so she takes them on a visit to the House of Commons.
When an old flame of Sally's turns up unexpectedly, Auntie and the boys are happy to have a man about the house again. But Sally sees any future suitor should have better qualifications than just the ability to mend toys.
Simon sees himself as the potential breadwinner in the house and so announces his intention to leave school. Sally tries to head off his teenage rebellion by offering a military solution.
Mr Campbell invites Sally and her family down to stay in his sister's country home. When Peter falls in the river at the start of their mini holiday and the household has a disturbed night, Miss Campbell starts doubting whether the invitation was a good idea after all.
Auntie starts a "subtle" campaign to enlighten the boys about their mum's impending birthday, in the hope that they might buy her something special.
Sally has joined the ranks of the unemployed and after assessing her qualifications she seriously doubts any employer would want her skills - shorthand that can't be read back, an essay on volcanoes and night classes in fruit bottling.
In an attempt to gain an income, Sally sets up a mushroom-growing business in her back garden, but it doesn't go too well. It's lucky that David Redway has taken over Mr Campbell's veterinary practice as he comes to the rescue and offers her a job.
Sally starts work for her dishy new boss, David, but is unsure whether he is unattached. When he asks her out for dinner her hopes rise but her sons intervene and spoil her plans...
After discovering what her boys are up to, Sally decides that they are sex mad. When David suggests they meet his daughter at the weekend, she decides to give them a talk on love and babies - but they draw the completely wrong conclusion!
When David suggests the boys meet his daughter Jane, Sally is worried they may make fun of her because she is quite plain. But she is wrong as the boys take to her and the problems only occur when Jane has to go back to school and David asks Sally to accompany them...
The time has come for the happy couple to meet their respective parents. Sally is less than comfortable that David's mother is a Lady - especially when she observes her own parents' lack of social graces.
The omens are not good for Sally and David when they go to buy the engagement ring and another young couple have a row in the jewellers and break off their engagement. At the restaurant a couple celebrating their wedding anniversary start rowing and, to top it all, David announces that he doesn't want a church wedding!
Sally is beginning to question David's commitment to marriage, because the engagement ring has not been followed by a wedding date. She tries dropping heavy hints but Auntie's tale of her own trip to the altar hardly helps matters.
With the date for the wedding now set, Sally is happy to start making plans for the honeymoon in Paris and for David to move into her home. But David is making plans of his own for Sally and the boys to move in with him!
When Sally learns that David wants her to give up her job once they are married she is not best pleased, and the sight of him interviewing pretty girls at his bookshop does not help her mood. However, she needs to be nice to him as she has not yet told him that she wants Auntie to live with them after they are married!
With the Big Day only 24 hours away, Sally has completed all the preparations and Auntie has successfully moved in to her new flat about David's bookshop. The one big worry for her is David's stag night and her fears are not quashed when she hears that the notorious Nellie McQueen will be behind the bar.
It's the day of the wedding and things would not be the same if something didn't go wrong. Sally is late for the church - very late! With David and the rest of the family getting worried, will Sally turn up for her big day?
The wedding reception is in full swing when Sally and David sneak away to go on their honeymoon to Paris. But when they reach the airport things don't go to plan and Sally ends up in Paris alone!
Now that Sally and David have returned from honeymoon, they have to start getting used to the new living arrangements. The first breakfast for the combined families proves that there is a lot to get used to.
